3D Secure

The 3-D Secure™ protocol (named for the Three Domains of online card transactions: Issuer, Acquirer and Interoperability/Internet/Settlement Network) addresses this issue by ensuring that participating cards may only be used in a card-not-present environment if a correct password or other identity verifying information is provided for that card upon authorization – an identifier selected by the registered owner of the card upon registration with the service.